煤矿巷道直墙半圆拱形波形钢腹板支架稳定承载性能
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摘要
将新型波形钢腹板支架用于煤矿巷道金属支架结构中,采用试验研究和有限元数值模拟分析相结合的方法,研究波形钢腹板支架结构的稳定承载性能。设计了2榀直墙半圆拱形波形钢腹板支架的模型试验,得到支架的失稳破坏形态、应变与位移发展规律,并分析了波形钢腹板翼缘厚度变化对支架承载力的影响程度。结果表明:波形钢腹板支架破坏形态为整体非对称失稳,支架翼缘厚度由12 mm增加为16 mm时,即增幅为33%,支架的承载力提高27. 38%,表明翼缘厚度对支架的承载性能有显著影响。试验结果与有限元分析结果吻合良好,验证了有限元模型的正确性。同时采用有限元方法对用钢量基本相同的矿用工字钢支架和波形钢腹板支架进行对比,结果表明:波形钢腹板支架承载力比矿用工字钢提高了31. 68%,其变形约为矿用工字钢的4/5。通过数值模拟分析波形钢腹板支架截面各参数对支架弹性和弹塑性屈曲荷载的影响,发现腹板高度和厚度是较敏感参数;并比较了波形钢腹板支架和矿用工字钢支架分别在静水压力作用下、垂直单向应力作用下和垂向力为主的荷载作用下的支护性能,发现在相同的用钢量情况下,波形钢腹板支架具有较高的抗剪承载力,在高厚比很大的情况下不容易发生屈曲,且翼缘用钢量集中,使得截面的抗弯和轴压稳定承载力也大幅度提高,故它在各种荷载状态下的变形量均小于矿用工字钢支架,其支护效果优于矿用工字钢支架。
A new type of metal support named H-Shaped members with corrugated webs was proposed to be applied in the metal support structure of the mine roadway.Through the experimental study combined with the finite element numerical simulation,the stability behaviors of this type of supporting structure with corrugated webs were studied. The model tests on two straight wall semicircle arch with corrugated webs were designed to obtain the failure mode,the strain and the displacement development rules of the support,and the influence of flange thickness of corrugated steel web on the supporting capacity is analyzed.The results showed that the failure mode of the corrugated steel webs was global asymmetric buckling,when the flange thickness of the corrugated steel webs was increased from 12 mm to16 mm,increased by 33%,the bearing capacity of the support increased by 27.38%. It showed that the thickness of flange has a significant influence on the bearing capacity of the support.And the finite element model was verified by comparing the experimental results with finite element analysis.At the same time,the finite element method was used to compare the I-steel for mining with the corrugated web support with the same steel consumption. The results showed that the bearing capacity of the corrugated web support was 31.68% higher than I-steel for mining,and the deformation was about 4/5 of I-steel for mining.Through the numerical simulation of the influence of various parameters of the section of corrugated steel web support on the elastic and elasto-plastic buckling load of the support,it was found that the height and thickness of the web are more sensitive parameters.The supporting performance of the corrugated webs support and I-steel support for mining were respectively analyzed under the hydrostatic pressure,vertical unidirectional stress and vertical force.Results showed that with the same steel consumption,the corrugated web support had higher shearing capacity,and it was not easy to undergo buckling even if it had high height-to-thickness ratios.In addition,it was flexural and the axial stability capacity could also be greatly improved since the steel consumption was concentrated on the flanges. Therefore,the deformation of the corrugated web support was less than the mining I-steel support,and the supporting performance of the corrugated supporting was superior to I-steel support under various load conditions.
A new type of metal support named H-Shaped members with corrugated webs was proposed to be applied in the metal support structure of the mine roadway.Through the experimental study combined with the finite element numerical simulation,the stability behaviors of this type of supporting structure with corrugated webs were studied. The model tests on two straight wall semicircle arch with corrugated webs were designed to obtain the failure mode,the strain and the displacement development rules of the support,and the influence of flange thickness of corrugated steel web on the supporting capacity is analyzed.The results showed that the failure mode of the corrugated steel webs was global asymmetric buckling,when the flange thickness of the corrugated steel webs was increased from 12 mm to16 mm,increased by 33%,the bearing capacity of the support increased by 27.38%. It showed that the thickness of flange has a significant influence on the bearing capacity of the support.And the finite element model was verified by comparing the experimental results with finite element analysis.At the same time,the finite element method was used to compare the I-steel for mining with the corrugated web support with the same steel consumption. The results showed that the bearing capacity of the corrugated web support was 31.68% higher than I-steel for mining,and the deformation was about 4/5 of I-steel for mining.Through the numerical simulation of the influence of various parameters of the section of corrugated steel web support on the elastic and elasto-plastic buckling load of the support,it was found that the height and thickness of the web are more sensitive parameters.The supporting performance of the corrugated webs support and I-steel support for mining were respectively analyzed under the hydrostatic pressure,vertical unidirectional stress and vertical force.Results showed that with the same steel consumption,the corrugated web support had higher shearing capacity,and it was not easy to undergo buckling even if it had high height-to-thickness ratios.In addition,it was flexural and the axial stability capacity could also be greatly improved since the steel consumption was concentrated on the flanges. Therefore,the deformation of the corrugated web support was less than the mining I-steel support,and the supporting performance of the corrugated supporting was superior to I-steel support under various load conditions.
引文
[1]蒋金泉.采场围岩应力与运动[M].北京:煤炭工业出版社,1993:46-98.
[2]郑颖人,沈珠江.龚晓南.岩土塑性力学原理[M].北京:中国建筑工业大学出版社,2003:11-21.
[3]张庆林.波浪腹板工形构件稳定承载力设计方法研究[D].北京:清华大学,2008:29-88.ZHANG Qinglin. Study on the stability behavior of H-shaped members with sinusoidal webs[D]. Beijing:Tsinghua University,2008:29-88.
[4] SMITH D.Behavior of corrugated plates subjected to shear[D].Maine:Department of Civil Engineering,University of Maine,1992:101-349.
[5] EASLEY John T.Buckling formulas for corrugated metal shear diaphragms[J].Journal of the Structural Division,1975:1403-1417.
[6] LUO R,EDLUND B. Buckling analysis of trapezoidally corrugated panels using spline finite strip method[J]. Thin-Walled Structures,1994,18:209-224.
[7] LUO R,EDLUND B. Numerical simulation of shear tests on plate girders with corrugated webs[D].Sweden:Division of Steel and Timber Structures,Chalmers University of Technology,1995:269-449.
[8] LUO R,EDLUND B.Shear capacity of plate girders with trapezoidally corrugated webs[J]. Journal of Thin-Walled Structures,1996,26(1):19-44.
[9]李时,郭彦林.波折腹板梁抗剪性能研究[J].建筑结构学报,2001(6):49-54.LI Shi,GUO Yanlin.Study on shearing resistance of beams with trapezoidally corrugated webs[J]. Journal of Building Structures,2001(6):49-54.
[10] EZZELDIN Yazeed Sayed-Ahmed.Behavior of steel and(or)composite girders with corrugated Webs[J]. Canadian Journal of Civil Engineering,2001,28(4):656-672.
[11]吴文清,叶见曙,万水,等.波形钢腹板-混凝土组合箱梁截面变形的拟平截面假定及其应用研究[J].工程力学,2005(5):177-180,198.WU Wenqing,YE Jianshu,WAN Shui,et al. Quasi plane assumption and its application in steel-concrete composite box girders with corrugated steel webs[J]. Engineering Mechanics,2005(5):177-180,198.
[12]任红伟.波纹钢腹板预应力混凝土组合箱梁设计理论与试验研究[D].北京:北京交通大学,2011:57-64.REN Hongwei. Design theory and experimental study of prestressed concrete composite box girder with corrugated steel webs[D].Beijing:Beijing Jiaotong University,2011:57-64.
[13] LINDNER J.Shear capacity of beams with trapezoidally corrugated webs and openings[A]. Proceedings of the 1991 Annual Technical Session on Inelastic Behavior and Design of Frames[C].Chicago,1991.
[14]上平謙二,立神久雄,本田秀行,等.波形鋼板を有するPC箱桁橋のせん断およびれじり特性に関する研究[J].ブレストレストュンクリ一ト,1998,40(3):16-25.
[15]上平謙二,新谷英司,蛯名貴之,等.波形鋼板ウエブPC箱桁橋のねじり挙動と隔壁間隔の関係について[J].ブレストレストコンクリ一ト,1999,41(1):38-42.
[16]郭彦林,张庆林.波折腹板工形构件翼缘稳定性能研究[J].建筑科学与工程学报,2007,24(7):64-69.GUO Yanlin,ZHANG Qinglin. Research on stability behavior of flanges in H-shaped members with corrugated web[J]. Journal of Architecture and Civil Engineering,2007,24(7):64-69.
[17]郭彦林,张庆林,王小安.波浪腹板工形构件抗剪承载力设计理论及试验研究[J].土木工程学报,2010,43(10):45-52.GUO Yanlin,ZHANG Qinglin,WANG Xiaoan.A theoretical and experimental study of the shear strength of H-shaped members with sinusoidal corrugated webs[J]. China Civil Engineering Journal,2010,43(10):45-52.
[18]郭彦林,张庆林,王小安.波浪腹板梁平面外稳定承载力设计理论与试验研究[J].土木工程学报,2010,43(11):17-26.GUO Yanlin,ZHANG Qinglin,WANG Xiaoan. Theoretical and experimental study on the lateral buckling behavior of H-shaped members with sinusoidal corrugated webs[J]. China Civil Engineering Journal,2010,43(11):17-26.
[19]郭彦林,王小安,张庆林.波浪腹板变截面压弯构件稳定承载力设计方法和试验研究[J].工程力学,2010,27(9):139-146.GUO Yanlin,WANG Xiaoan,ZHANG Qinglin.Design methods and experimental study on the stability behavior of tapered beam-columns with sinusoidal corrugated web[J]. Engineering Mechanics,2010,27(9):139-146.
[20]郭彦林,张博浩.波浪腹板工形梁局部承压承载力设计方法研究[J].工业建筑,2012,42(7):45-54.GUO Yanlin,ZHANG Bohao.Strength of I-shaped girders with sinusoidal corrugated webs under patch loading[J].Industrial Construction,2012,42(7):45-54.
[21] CECS 290:2011,波浪腹板钢结构应用技术规程[S].北京:中国计划出版社,2011.
[22]张琪.波形钢腹板PC组合箱梁腹板剪切屈曲稳定性能研究[D].兰州:兰州交通大学,2015:11-23.ZHANG Qi. Research on shear buckling stability of prestress concrete composite box girder with corrugated steel webs[D].Lanzhou:Lanzhou Jiaotong University,2015:11-23.
[23]王川.波纹钢腹板PC组合箱梁桥施工过程仿真和腹板稳定性分析[D].重庆:重庆大学,2016:10-18.WANG Chuan. Construction of PC composite box-girder bridge with corrugated steel webs process simulation and stability analysis of the web[D].Chongqing:Chongqing University,2016:10-18.
[24]宋建永,任红伟,聂建国.波纹钢腹板剪切屈曲影响因素分析[J].公路交通科技,2005(11):93-96.SONG Jianyong,REN Hongwei,NIE Jianguo.Nonlinear shear buckling analysis of corrugated steel webs[J]. Journal of Highway and Transportation Research and Development,2005(11):93-96.
[25] WU Lili,YU Zhen,ZHANG Dongdong.Preliminary study on application of metal members with corrugated webs in the supports of soft rock[J]. Applied Mechanics and Materials,2011,90-93:2380-2388.
[26]吴丽丽,李佳蔚,韦贵华,等.巷道金属支架在实际围岩压力下的简化力学模型分析[A].中国钢结构协会结构稳定与疲劳分会第14届(ISSF-2014)学术交流会暨教学研讨会论文集[C].2014:8.WU Lili,LI Jiawei,WEI Guihua,et al.A simplified mechanic model of steel support in roadways under actual pressure of surrounding Rock[A].Collected Papers of the 14th Academic Exchange Meeting and Teaching Seminar of Structural Stability and Fatigue Branch of China Steel Structure Association[C].2014:8
[27]吴丽丽,余珍,邢瑞娇,等.新型波形钢腹板支架结构及力学性能分析.中国矿业大学学报,2014,43(2):227-232WU Lili,YU Zhen,XING Ruijiao,et al. A new metal supporting structure with corrugated webs and its mechanical property[J].Journal of China University of Mining&Technology,2014,43(2):227-232.
[28]吴丽丽,郭开凤,余珍,等.新型波形钢腹板支架结构平面内弹性屈曲性能分析[J].四川大学学报(工程科学版),2015,47(6):9-14.WU Lili,GUO Kaifeng,YU Zhen,et al.Analysis of in-plane elastic buckling properties of new type of supporting steel structure with corrugated webs[J].Journal of Sichuan University(Engineering Science Edition),2015,47(6):9-14.
[29]吴丽丽,安丽佩,李佳蔚,等.马蹄形断面波形钢腹板支架稳定承载性能研究[J].工程科学与技术,2017,49(6):55-64.WU Lili,AN Lipei,LI Jiawei,et al.Investigation on stability behavior of U-shaped steel supporting structure with corrugated webs[J].Advanced Engineering Sciences,2017,49(6):55-64.
[30]吴丽丽,王琳,郭开凤.波形钢腹板支架可缩性节点轴压试验[J].钢结构,2016,31(Sl):547-557.WU Lili,WANG Lin,GUO Kaifeng. Axial loading test on yielding joint of metal supporting structure with corrugated webs[J]. Steel Construction,2016,31(Sl):547-557.
[2]郑颖人,沈珠江.龚晓南.岩土塑性力学原理[M].北京:中国建筑工业大学出版社,2003:11-21.
[3]张庆林.波浪腹板工形构件稳定承载力设计方法研究[D].北京:清华大学,2008:29-88.ZHANG Qinglin. Study on the stability behavior of H-shaped members with sinusoidal webs[D]. Beijing:Tsinghua University,2008:29-88.
[4] SMITH D.Behavior of corrugated plates subjected to shear[D].Maine:Department of Civil Engineering,University of Maine,1992:101-349.
[5] EASLEY John T.Buckling formulas for corrugated metal shear diaphragms[J].Journal of the Structural Division,1975:1403-1417.
[6] LUO R,EDLUND B. Buckling analysis of trapezoidally corrugated panels using spline finite strip method[J]. Thin-Walled Structures,1994,18:209-224.
[7] LUO R,EDLUND B. Numerical simulation of shear tests on plate girders with corrugated webs[D].Sweden:Division of Steel and Timber Structures,Chalmers University of Technology,1995:269-449.
[8] LUO R,EDLUND B.Shear capacity of plate girders with trapezoidally corrugated webs[J]. Journal of Thin-Walled Structures,1996,26(1):19-44.
[9]李时,郭彦林.波折腹板梁抗剪性能研究[J].建筑结构学报,2001(6):49-54.LI Shi,GUO Yanlin.Study on shearing resistance of beams with trapezoidally corrugated webs[J]. Journal of Building Structures,2001(6):49-54.
[10] EZZELDIN Yazeed Sayed-Ahmed.Behavior of steel and(or)composite girders with corrugated Webs[J]. Canadian Journal of Civil Engineering,2001,28(4):656-672.
[11]吴文清,叶见曙,万水,等.波形钢腹板-混凝土组合箱梁截面变形的拟平截面假定及其应用研究[J].工程力学,2005(5):177-180,198.WU Wenqing,YE Jianshu,WAN Shui,et al. Quasi plane assumption and its application in steel-concrete composite box girders with corrugated steel webs[J]. Engineering Mechanics,2005(5):177-180,198.
[12]任红伟.波纹钢腹板预应力混凝土组合箱梁设计理论与试验研究[D].北京:北京交通大学,2011:57-64.REN Hongwei. Design theory and experimental study of prestressed concrete composite box girder with corrugated steel webs[D].Beijing:Beijing Jiaotong University,2011:57-64.
[13] LINDNER J.Shear capacity of beams with trapezoidally corrugated webs and openings[A]. Proceedings of the 1991 Annual Technical Session on Inelastic Behavior and Design of Frames[C].Chicago,1991.
[14]上平謙二,立神久雄,本田秀行,等.波形鋼板を有するPC箱桁橋のせん断およびれじり特性に関する研究[J].ブレストレストュンクリ一ト,1998,40(3):16-25.
[15]上平謙二,新谷英司,蛯名貴之,等.波形鋼板ウエブPC箱桁橋のねじり挙動と隔壁間隔の関係について[J].ブレストレストコンクリ一ト,1999,41(1):38-42.
[16]郭彦林,张庆林.波折腹板工形构件翼缘稳定性能研究[J].建筑科学与工程学报,2007,24(7):64-69.GUO Yanlin,ZHANG Qinglin. Research on stability behavior of flanges in H-shaped members with corrugated web[J]. Journal of Architecture and Civil Engineering,2007,24(7):64-69.
[17]郭彦林,张庆林,王小安.波浪腹板工形构件抗剪承载力设计理论及试验研究[J].土木工程学报,2010,43(10):45-52.GUO Yanlin,ZHANG Qinglin,WANG Xiaoan.A theoretical and experimental study of the shear strength of H-shaped members with sinusoidal corrugated webs[J]. China Civil Engineering Journal,2010,43(10):45-52.
[18]郭彦林,张庆林,王小安.波浪腹板梁平面外稳定承载力设计理论与试验研究[J].土木工程学报,2010,43(11):17-26.GUO Yanlin,ZHANG Qinglin,WANG Xiaoan. Theoretical and experimental study on the lateral buckling behavior of H-shaped members with sinusoidal corrugated webs[J]. China Civil Engineering Journal,2010,43(11):17-26.
[19]郭彦林,王小安,张庆林.波浪腹板变截面压弯构件稳定承载力设计方法和试验研究[J].工程力学,2010,27(9):139-146.GUO Yanlin,WANG Xiaoan,ZHANG Qinglin.Design methods and experimental study on the stability behavior of tapered beam-columns with sinusoidal corrugated web[J]. Engineering Mechanics,2010,27(9):139-146.
[20]郭彦林,张博浩.波浪腹板工形梁局部承压承载力设计方法研究[J].工业建筑,2012,42(7):45-54.GUO Yanlin,ZHANG Bohao.Strength of I-shaped girders with sinusoidal corrugated webs under patch loading[J].Industrial Construction,2012,42(7):45-54.
[21] CECS 290:2011,波浪腹板钢结构应用技术规程[S].北京:中国计划出版社,2011.
[22]张琪.波形钢腹板PC组合箱梁腹板剪切屈曲稳定性能研究[D].兰州:兰州交通大学,2015:11-23.ZHANG Qi. Research on shear buckling stability of prestress concrete composite box girder with corrugated steel webs[D].Lanzhou:Lanzhou Jiaotong University,2015:11-23.
[23]王川.波纹钢腹板PC组合箱梁桥施工过程仿真和腹板稳定性分析[D].重庆:重庆大学,2016:10-18.WANG Chuan. Construction of PC composite box-girder bridge with corrugated steel webs process simulation and stability analysis of the web[D].Chongqing:Chongqing University,2016:10-18.
[24]宋建永,任红伟,聂建国.波纹钢腹板剪切屈曲影响因素分析[J].公路交通科技,2005(11):93-96.SONG Jianyong,REN Hongwei,NIE Jianguo.Nonlinear shear buckling analysis of corrugated steel webs[J]. Journal of Highway and Transportation Research and Development,2005(11):93-96.
[25] WU Lili,YU Zhen,ZHANG Dongdong.Preliminary study on application of metal members with corrugated webs in the supports of soft rock[J]. Applied Mechanics and Materials,2011,90-93:2380-2388.
[26]吴丽丽,李佳蔚,韦贵华,等.巷道金属支架在实际围岩压力下的简化力学模型分析[A].中国钢结构协会结构稳定与疲劳分会第14届(ISSF-2014)学术交流会暨教学研讨会论文集[C].2014:8.WU Lili,LI Jiawei,WEI Guihua,et al.A simplified mechanic model of steel support in roadways under actual pressure of surrounding Rock[A].Collected Papers of the 14th Academic Exchange Meeting and Teaching Seminar of Structural Stability and Fatigue Branch of China Steel Structure Association[C].2014:8
[27]吴丽丽,余珍,邢瑞娇,等.新型波形钢腹板支架结构及力学性能分析.中国矿业大学学报,2014,43(2):227-232WU Lili,YU Zhen,XING Ruijiao,et al. A new metal supporting structure with corrugated webs and its mechanical property[J].Journal of China University of Mining&Technology,2014,43(2):227-232.
[28]吴丽丽,郭开凤,余珍,等.新型波形钢腹板支架结构平面内弹性屈曲性能分析[J].四川大学学报(工程科学版),2015,47(6):9-14.WU Lili,GUO Kaifeng,YU Zhen,et al.Analysis of in-plane elastic buckling properties of new type of supporting steel structure with corrugated webs[J].Journal of Sichuan University(Engineering Science Edition),2015,47(6):9-14.
[29]吴丽丽,安丽佩,李佳蔚,等.马蹄形断面波形钢腹板支架稳定承载性能研究[J].工程科学与技术,2017,49(6):55-64.WU Lili,AN Lipei,LI Jiawei,et al.Investigation on stability behavior of U-shaped steel supporting structure with corrugated webs[J].Advanced Engineering Sciences,2017,49(6):55-64.
[30]吴丽丽,王琳,郭开凤.波形钢腹板支架可缩性节点轴压试验[J].钢结构,2016,31(Sl):547-557.WU Lili,WANG Lin,GUO Kaifeng. Axial loading test on yielding joint of metal supporting structure with corrugated webs[J]. Steel Construction,2016,31(Sl):547-557.
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